The most recent reported hail day was 2026-04-10, 112 days ago. Dallam County is hit in most years, often more than once. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2023-06-13 near Ware.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Texas. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2026-04-10, around Dalhart. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Dallam County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 43 separate hail days here since 2010 -- 2.5 a year over 17 years of record. Those days carry 87 separate reports between them, two or three on a typical one. 3 of those 17 years produced none at all. The busiest single year was 2023, with 7 hail days. The last five years have run hotter than the long-run rate: 18 days since 2022, against 2.1 a year before that.
8 of the 43 days reached 2 inches or more -- 19%, or about one hail day in 5, the last on 2025-09-17. They land in the same month as everything else, May. 19 of the 43 days reached golf-ball size, 1.75 inches or bigger.
Across the whole of Texas, see the Texas hail map and history.
Reports cluster nearest Dalhart -- 23 of the county's 43 hail days -- then Texline (17), Ware (8), Conlen (6) and Stratford (2). That one town is named on 53% of them.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Texline | 10 | 2.75″ |
| 4 E Dalhart | 5 | 1.50″ |
| Dalhart | 4 | 1.75″ |
| Conlen | 3 | 1.75″ |
| 4 S Texline | 2 | 2.75″ |
The season runs April through July: 37 of the 43 hail days on record fall in those 4 months (86%). May is the single busiest month, with 17 of them (40%). That peak sits inside the window rather than at either end. Hail has also been reported in August, September and November, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.
| Month | Hail days |
|---|---|
| April | 4 |
| May | 17 |
| June | 11 |
| July | 5 |
| August | 1 |
| September | 4 |
| November | 1 |
That day put 1 report on the map, the biggest 1 inch near Dalhart. 1 hail day has already been reported this year.
| Date | Max hail | Reports |
|---|---|---|
| 2026-04-10 | 1.00″ | 1 |
| 2025-09-17 | 2.50″ | 3 |
| 2025-09-08 | 1.75″ | 2 |
| 2025-07-05 | 1.00″ | 1 |
| 2025-06-08 | 1.75″ | 1 |
| 2024-05-28 | 2.75″ | 7 |
| 2024-05-15 | 1.25″ | 3 |
| 2023-09-09 | 1.75″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own, over the state line included: Hartley County (45 hail days), Sherman County (38), Moore County (49) and Cimarron County, Oklahoma (47). Dallam County sits in between.
Hartley County · Sherman County · Moore County · Cimarron County, Oklahoma
Back to the Texas hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Dallam County, Texas only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.